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Entanglement of two atoms
Author(s) -
Tanaś R.,
Ficek Z.
Publication year - 2003
Publication title -
fortschritte der physik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.469
H-Index - 71
eISSN - 1521-3978
pISSN - 0015-8208
DOI - 10.1002/prop.200310032
Subject(s) - antisymmetric relation , quantum entanglement , concurrence , physics , measure (data warehouse) , quantum mechanics , population , field (mathematics) , state (computer science) , atomic physics , quantum , mathematics , computer science , mathematical physics , demography , algorithm , database , sociology , pure mathematics
We discuss the problem of creation of entangled states in a system of two two‐level atoms which are separated by an arbitrary distance r 12 and interact with each other via the dipole‐dipole interaction and both are driven by a laser field. The entangled antisymmetric state of the system is included throughout, even for small inter‐atomic separations. Different mechanisms leading to effective transfer of population to the antisymmetric state are identified. The steady‐state values of concurrence which is a measure of entanglement are calculated showing that perfect entanglement can be reached in case of two non‐identical atoms.